Quote Originally Posted by theclaw View Post
Yes. You have to be careful with Sonic if looking for a US copy. Beside paying hundreds for nothing more than a UPC sticker. Once the factory seal is opened, it immediately and forever becomes IMPOSSIBLE to verify as fully authentic US any longer. Since even complete the cartridge inside could have been swapped with an identical PAL one.
I'm glad I stumbled upon this because I've been trying to find a copy for the last week or so and have discovered this very issue for myself. So, is there *any* way to tell what is US and what is outside?

Also, I can't verify whether or not Sonic 2 was ever released on the SMS. Some sources say yes, some say no. Any idea?